Multiple Choice
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A hydraulic press is operating correctly when the standard deviation of the pressure is less than 120 pounds-per-square-inch (psi) .Suppose you take a random sample of 15 measurements throughout the day of the psi and find the standard deviation to be 148.Suppose you want to test whether the press is operating correctly.
-What is the decision rule for this test?
A) Reject H0 if (n - 1) s / σ0 >
or <
B) Reject H0 if (n - 1) s / σ0 >
C) Reject H0 if (n - 1) s2 /
>
D) Reject H0 if (n - 1) s / σ0 >
Correct Answer:

Verified
Correct Answer:
Verified
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